Updated readme

Author: anutosh491

README.md

@@ -128,20 +128,25 @@ http://xeus-cpp.readthedocs.io
 
 `xeus-cpp` depends on
 
+
 - [xeus-zmq](https://github.com/jupyter-xeus/xeus-zmq)
-- [xtl](https://github.com/xtensor-stack/xtl)
 - [nlohmann_json](https://github.com/nlohmann/json)
 - [cppzmq](https://github.com/zeromq/cppzmq)
-- [clang](https://github.com/llvm/llvm-project/)
 - [argparse](https://github.com/p-ranav/argparse)
+- [CppInterOp](https://github.com/compiler-research/CppInterOp)
+
+| `xeus-cpp` | `xeus-zmq`      | `CppInterOp` | `pugixml` | `cppzmq` | `cpp-argparse`| `nlohmann_json` |
+|------------|-----------------|--------------|-----------|----------|---------------|-----------------|
+|  main      |  >=3.0.0,<4.0.0 | >=1.3.0      | ~1.8.1    | ~4.3.0   | <3.1          | >=3.11.3,<4.0   |
+
+Versions prior to `main` have an additional dependency on [xtl](https://github.com/xtensor-stack/xtl) & [clang](https://github.com/llvm/llvm-project/).
 
-| `xeus-cpp` | `xeus-zmq`      | `xtl`           | `CppInterOp` | `clang`   | `pugixml` | `cppzmq` | `cpp-argparse`| `nlohmann_json` |
-|------------|-----------------|-----------------|--------------|-----------|-----------|----------|---------------|-----------------|
-|  main      |  >=1.0.2,<2.0.0 |  >=0.7.7,<0.8.0 | >=1.3.0      |           | ~1.8.1    | ~4.3.0   | <3.1          | >=3.11.2,<4.0   |
-|  0.4.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 |              | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
-|  0.3.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 |              | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
-|  0.2.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 |              | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
-|  0.1.0     |  >=1.0.0,<2.0.0 |  >=0.7.0,<0.8.0 |              | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
+| `xeus-cpp` | `xeus-zmq`      | `xtl`           | `clang`   | `pugixml` | `cppzmq` | `cpp-argparse`| `nlohmann_json` |
+|------------|-----------------|-----------------|-----------|-----------|----------|---------------|-----------------|
+|  0.4.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
+|  0.3.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
+|  0.2.0     |  >=1.0.0,<2.0.0 |  >=0.7.7,<0.8.0 | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
+|  0.1.0     |  >=1.0.0,<2.0.0 |  >=0.7.0,<0.8.0 | >=16,<17  | ~1.8.1    | ~4.3.0   | ~2.9          | >=3.6.1,<4.0    |
 
 ## Contributing
 

src/xinterpreter.cpp

@@ -249,7 +249,6 @@ __get_cxx_version ()
             kernel_res["user_expressions"] = nl::json::object();
         }
         cb(kernel_res);
-        return;
     }
 
     nl::json interpreter::complete_request_impl(const std::string& code, int cursor_pos)